Necking punching machine

Abstract

The utility model provides a necking punching machine which comprises a working table plate, the upper end of the working table plate is sequentially provided with a feeding station, a necking station, a punching station and a discharging station in the X-axis direction, the feeding station is provided with a feeding device, the necking station is sequentially provided with a necking clamping device and a necking device in the Z-axis direction, and the discharging station is provided with a discharging device. A punching clamping device is arranged in the center of the punching station, the punching station is provided with two punching devices, the two punching devices are arranged on the two sides of the punching clamping device respectively, the discharging station is provided with a discharging device, and a transfer manipulator is arranged above the working table. The transferring mechanical arm is used for driving the pipe fitting to flow among the feeding station, the necking station, the punching station and the discharging station. According to the necking and punching machine, necking and punching of the pipe fitting can be completed at a time, the pipe fitting does not need to be controlled to move among all machining devices, and the necking and punching machine has the advantages that the machining process is more convenient and faster, and the machining efficiency is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipe fitting processing equipment, in particular to a necking and punching machine. BACKGROUND

[0002] At present, when pipe fittings need to be processed into shapes such as Figure 1 , the pipe ends need to be necked by a pipe necking machine first, and then the two ends of the pipe fittings need to be punched by a punching machine. This requires controlling the transfer of pipe fittings between the pipe necking machine and the punching machine, which has the defect of low processing efficiency. SUMMARY

[0003] Therefore, the utility model aims to provide a necking and punching machine with the advantage of high processing efficiency.

[0004] To solve the above technical problems, the technical scheme of the utility model is as follows: a necking and punching machine, comprising a workbench plate, an upper end of the workbench plate is sequentially provided with a feeding station, a necking station, a punching station and a discharging station along the X-axis direction, the feeding station is provided with a feeding device, the feeding device is used to feed pipe fittings one by one, the necking station is sequentially provided with a necking clamping device and a necking device along the Z-axis direction, the necking clamping device is used to clamp pipe fittings, the necking device is used to neck the end of pipe fittings, the center position of the punching station is provided with a punching clamping device, the punching clamping device is used to clamp pipe fittings, the punching station is provided with two punching devices, the two punching devices are arranged on the two sides of the punching clamping device, and are used to punch the two ends of pipe fittings respectively, the discharging station is provided with a discharging device, the discharging device is used to transport pipe fittings outward, an upper portion of the workbench plate is provided with a transfer manipulator, the transfer manipulator is used to drive pipe fittings to flow between the feeding station, the necking station, the punching station and the discharging station.

[0005] By the technical scheme, before use, the pipe fittings to be processed are placed in the feeding device in order. When used, first, the pipe fittings are supplied one by one by the feeding device, second, the pipe fittings are moved from the feeding device to the necking clamping device by the transfer manipulator, third, the pipe fittings are clamped and fixed by the necking clamping device, fourth, the end of the pipe fitting is necked by the necking device, fifth, the pipe fitting is clamped and fixed by the transfer manipulator, sixth, the pipe fitting is loosened by the necking clamping device, seventh, the pipe fitting is moved from the necking clamping device to the punching clamping device by the transfer manipulator, eighth, the pipe fitting is clamped and fixed by the punching clamping device, ninth, the two ends of the pipe end are punched by the two punching devices, tenth, the pipe fitting is clamped by the transfer manipulator, eleventh, the pipe fitting is loosened by the punching clamping device, twelfth, the pipe fitting is transported from the punching clamping device to the discharging device by the transfer manipulator, and thirteenth, the pipe fitting is placed into the frame by the discharging device.

[0006] In summary, the necking and punching machine can complete the necking and punching of the pipe fitting at one time, and the pipe fitting does not need to be transferred between the various processing devices, so that the processing process is more convenient, and the processing efficiency is higher.

[0007] Preferably, the feeding device comprises a hopper, a material ejection mechanism and a feeding guide mechanism arranged in sequence along the X-axis direction, the upper end of the hopper is provided with a pipe fitting chute, the pipe fitting chute extends obliquely to one side of the necking station, the lower end of the hopper is provided with a material ejection through hole, the material ejection mechanism comprises a material ejection plate slidingly arranged in the material ejection through hole in the vertical direction, a material ejection driving element arranged below the hopper and connected to the material ejection plate, the upper end of the material ejection plate is provided with a guide slope, the guide slope and the inner side wall of the hopper form a material ejection chamber for accommodating a single pipe fitting, and the feeding guide mechanism comprises a guide mounting bracket and a guide block arranged on the guide mounting bracket, the upper end of the guide block is provided with a guide opening for accommodating the pipe fitting falling from the pipe fitting chute.

[0008] By the technical scheme, when used, the material ejection plate is controlled to move upward by the material ejection driving element, in this process, the material ejection plate pushes the pipe fitting in the material ejection chamber to move upward, when the material ejection plate moves to the lower end of the guide slope and the upper end of the pipe fitting chute, the pipe fitting in the material ejection chamber slides along the pipe fitting chute under the action of gravity and finally falls into the guide opening.

[0009] Preferably, the feeding device further comprises a material blocking mechanism, the material blocking mechanism is located above the pipe fitting chute, and the material blocking mechanism comprises a material blocking cylinder and a material blocking plate arranged below the material blocking cylinder, and the output end of the material blocking cylinder is connected to the material blocking plate.

[0010] Through the technical scheme, when the pipe is moved to the pipe sliding plate, the blocking plate is driven by the blocking cylinder to move downward and contact the pipe, so that the pipe is blocked when the pipe is not removed from the guide opening.

[0011] Preferably, the necking clamping device comprises a necking clamp base plate arranged at the upper end of the workbench plate, a necking clamp base arranged at the upper end of the necking clamp base plate, a necking fixed chuck arranged at the upper end of the necking clamp base, a necking movable chuck arranged at the upper end of the necking clamp base and sliding along the X-axis direction, a necking clamp seat stand plate arranged at the upper end of the necking clamp base plate, and a necking clamping oil cylinder arranged on the side wall of the necking clamp seat stand plate, the output end of the necking clamping oil cylinder penetrating through the necking clamp seat stand plate and connecting the necking movable chuck.

[0012] Through the technical scheme, when the pipe enters between the necking fixed chuck and the necking movable chuck, the necking movable chuck is driven by the necking clamping drive oil cylinder to move to one side of the necking fixed chuck until the necking movable chuck and the necking fixed chuck abut against the two sides of the pipe, respectively.

[0013] Preferably, the necking device comprises a necking sliding table arranged at the upper end of the workbench plate and sliding along the Z-axis direction, a necking drive member arranged at the upper end of the workbench plate and used to drive the necking sliding table, a necking mounting seat arranged at the upper end of the necking sliding table, and a necking sleeve die arranged on the side wall of the necking mounting seat.

[0014] Through the technical scheme, when the pipe is clamped and fixed by the necking clamping device, the necking sliding table is controlled to move to the necking clamping device by the necking drive member, and when the necking sleeve die contacts the end of the pipe, the necking sleeve die extrudes the end of the pipe.

[0015] Preferably, the necking drive member comprises a necking servo motor, a necking screw rod coaxially connected with the necking servo motor, and a necking nut seat threadedly arranged on the outside of the necking screw rod, the necking nut seat being fixedly connected with the necking sliding table.

[0016] Through the technical scheme, when in use, the necking servo motor drives the necking screw rod to rotate circumferentially, and the necking screw rod drives the necking sliding table to slide through the necking nut seat when rotating.

[0017] Preferably, the punching clamping device comprises two clamping units, and the two clamping units are arranged side by side along the Z-axis direction.

[0018] Through the technical scheme, the two clamping units can clamp the pipe more stably.

[0019] Preferably, the clamping unit comprises a punching clamp base plate arranged at the upper end of the workbench plate, a punching clamp base arranged at the upper end of the punching clamp base plate, a punching fixed chuck arranged at the upper end of the punching clamp base, a punching movable chuck slidingly arranged at the upper end of the punching clamp base along the X-axis direction, a punching clamp seat stand plate arranged at the upper end of the punching clamp base plate, and a punching clamping oil cylinder arranged at the side wall of the punching clamp seat stand plate, with the output end of the punching clamping oil cylinder penetrating through the punching clamp seat stand plate and being connected to the punching movable chuck.

[0020] Through the above technical solution, when the pipe enters between the punching fixed chuck and the punching movable chuck, the punching movable chuck is driven by the punching clamping drive oil cylinder to move to the side of the punching fixed chuck until the punching movable chuck and the punching fixed chuck abut against the two sides of the pipe, respectively.

[0021] Preferably, the punching device comprises a punching sliding table slidingly arranged at the upper end of the workbench plate along the Z-axis direction, a punching drive member arranged at the upper end of the workbench plate to drive the punching sliding table, a positioning unit arranged at the upper end of the punching sliding table, and a punching unit arranged at the upper end of the punching sliding table. The positioning unit comprises a positioning mounting seat and a positioning core rod arranged at the side wall of the positioning mounting seat along the Z-axis direction. The punching unit comprises a punching mounting support arranged above the positioning mounting seat, a punching oil cylinder arranged at the upper end of the punching mounting support, and a punching core rod arranged at the output end of the punching oil cylinder. The punching oil cylinder is located directly above the positioning core rod, and the output end of the punching oil cylinder is arranged vertically downward.

[0022] Through the above technical solution, when the pipe is clamped by the punching clamping device, the punching sliding table is controlled to move to the punching clamping device by the punching drive member until the positioning core rod extends into the end of the pipe. At this time, the outer wall of the positioning top plate abuts against the inner wall of the pipe to position the pipe. Then the punching core rod is driven to move downward by the punching oil cylinder until the punching core rod penetrates through the side wall of the pipe.

[0023] Preferably, the punching drive member comprises a punching servo motor, a punching lead screw coaxially connected to the punching servo motor, and a punching nut seat threadedly arranged outside the punching lead screw, with the punching nut seat being fixedly connected to the punching sliding table.

[0024] Through the above technical solution, when in use, the punching servo motor drives the punching lead screw to rotate circumferentially. When the punching lead screw rotates, the punching sliding table is driven to slide by the punching nut seat. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic view of the pipe;

[0026] Figure 2 Structure diagram of an embodiment Figure 1 ;

[0027] Figure 3 Structure diagram of an embodiment Figure 2 ;

[0028] Figure 4 Partial diagram of an embodiment

[0029] Figure 5 Structure diagram of a feeding device

[0030] Figure 6 Sectional view diagram of a feeding device

[0031] Figure 7 Structure diagram of a necking clamping device and a necking device

[0032] Figure 8 Structure diagram of a punching clamping device and a punching device

[0033] Reference signs: 1, workbench plate; 2, feeding station; 3, necking station; 4, punching station; 5, discharging station; 6, feeding device; 61, hopper; 62, ejection mechanism; 621, ejection plate; 622, ejection driving member; 6221, ejection support; 6222, ejection cylinder; 6223, ejection connecting plate; 63, feeding guide mechanism; 631, guide mounting support; 632, guide block; 64, material blocking mechanism; 641, blocking cylinder; 642, blocking plate; 7, necking clamping device; 71, necking clamp base plate; 72, necking clamp base; 73, necking fixed chuck; 74, necking movable chuck; 75, necking clamp seat upright plate; 76, necking clamping cylinder; 8, necking device; 81, necking sliding table; 82, necking driving member; 821, necking servo motor; 822, necking screw; 823, necking nut seat; 83, necking mounting seat; 84, necking die sleeve; 9, punching clamping device; 91, clamping unit; 911, punching clamp base plate; 912, punching clamp base; 913, punching fixed chuck; 914, punching movable chuck; 915, punching clamp seat upright plate; 916, punching clamping cylinder; 10, punching device; 101, punching sliding table; 102, punching driving member; 1021, punching servo motor; 1022, punching screw; 1023, punching nut seat; 103, positioning unit; 1031, positioning mounting seat; 1032, positioning mandrel; 104, punching unit; 1041, punching mounting support; 1042, punching cylinder; 1043, punching mandrel; 11, discharging device; 111, mounting upright column; 112, discharging guide plate; 12, transfer robot; 13, pipe sliding plate; 14, ejection through hole; 15, guide slope; 16, ejection chamber; 17, guide opening. Implementation

[0034] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.

[0035] A type of punching machine, such as Figures 2 to 8 As shown, the workbench 1 is provided with a loading station 2, a necking station 3, a punching station 4 and a unloading station 5 arranged sequentially along the X-axis at the upper end of the workbench 1.

[0036] The feeding station 2 is equipped with a feeding device 6, which is used to supply pipe fittings one by one. The feeding device 6 includes a hopper 61, a top feeding mechanism 62, and a feeding guide mechanism 63 arranged sequentially along the X-axis. The upper end of the hopper 61 is provided with a pipe fitting slide 13, which extends obliquely toward the constriction station 3. The inner bottom surface of the hopper 61 is obliquely toward the constriction station 3 to guide the movement of the pipe fittings inside the hopper 61. The lower end of the hopper 61 is provided with a top feeding through hole 14, and the side wall of the top feeding through hole 14 near the constriction station 3 is flush with the inner side wall of the hopper 61 near the constriction station 3. The top feeding mechanism 62 includes a top feeding plate 621 that is slidably disposed in the top feeding through hole 14 in the vertical direction, and a top feeding drive component 622 disposed below the hopper 61 and connected to the top feeding plate 621. The top plate 621 has a guide slope 15 at its upper end, and a top material chamber 16 for inserting a single pipe fitting is formed between the guide slope 15 and the inner side wall of the hopper 61. In this embodiment, there are several top material plates 621, which are evenly distributed along the Z-axis. The top material drive unit 622 includes a top material support 6221 disposed on the side wall of the worktable 1, a top material cylinder 6222 disposed vertically on the top material support 6221, and a top material connecting plate 6223 disposed at the output end of the top material cylinder 6222. Several top material plates 621 are disposed on the upper end of the top material connecting plate 6223. The feeding guide mechanism 63 includes a guide mounting bracket 631 and a guide block 632 disposed on the guide mounting bracket 631. The upper end of the guide block 632 has a guide opening 17, which is used to receive the pipe fitting sliding down from the pipe fitting slide 13. The feeding device 6 also includes a baffle mechanism 64, which is located above the pipe fitting slide 13. The baffle mechanism 64 includes a baffle cylinder 641 and a baffle plate 642 disposed below the baffle cylinder 641. The output end of the baffle cylinder 641 is connected to the baffle plate 642. A temporary storage chamber for inserting a single pipe fitting is formed between the baffle plate 642 and the upper end of the pipe fitting slide 1316.

[0037] The necking station 3 is sequentially provided with a necking clamping device 7 and a necking device 8 along the Z-axis direction. The necking clamping device 7 is used to clamp the pipe. The necking clamping device 7 comprises a necking clamp base plate 71 provided at the upper end of the workbench plate 1, a necking clamp base 72 provided at the upper end of the necking clamp base plate 71, a necking fixed chuck 73 provided at the upper end of the necking clamp base 72, a necking movable chuck 74 slidingly provided at the upper end of the necking clamp base 72 along the X-axis direction, a necking clamp seat upright plate 75 provided at the upper end of the necking clamp base plate 71, and a necking clamping oil cylinder 76 provided at the side wall of the necking clamp seat upright plate 75, the output end of the necking clamping oil cylinder 76 penetrating through the necking clamp seat upright plate 75 and being connected with the necking movable chuck 74. The necking device 8 is used to perform necking treatment on the end of the pipe. The necking device 8 comprises a necking sliding table 81 slidingly provided at the upper end of the workbench plate 1 along the Z-axis direction, a necking driving member 82 provided at the upper end of the workbench plate 1 and used to drive the necking sliding table 81, a necking mounting seat 83 provided at the upper end of the necking sliding table 81, and a necking sleeve die 84 provided at the side wall of the necking mounting seat 83. The necking driving member 82 comprises a necking servo motor 821, a necking lead screw 822 coaxially connected with the necking servo motor 821, and a necking nut seat 823 threadedly sleeved outside the necking lead screw 822, the necking nut seat 823 being fixedly connected with the necking sliding table 81.

[0038] The center position of the punching station 4 is provided with a punching clamping device 9, which is used to clamp the pipe. The punching clamping device 9 comprises two clamping units 91, and the two clamping units 91 are provided side by side along the Z-axis direction. The clamping unit 91 comprises a punching clamp base plate 911 provided at the upper end of the workbench plate 1, a punching clamp base 912 provided at the upper end of the punching clamp base plate 911, a punching fixed chuck 913 provided at the upper end of the punching clamp base 912, a punching movable chuck 914 slidingly provided at the upper end of the punching clamp base 912 along the X-axis direction, a punching clamp seat upright plate 915 provided at the upper end of the punching clamp base plate 911, and a punching clamping oil cylinder 916 provided at the side wall of the punching clamp seat upright plate 915, the output end of the punching clamping oil cylinder 916 penetrating through the punching clamp seat upright plate 915 and being connected with the punching movable chuck 914.

[0039] The punching station 4 is provided with two punching devices 10, which are respectively arranged on the two sides of the punching clamping device 9, and are used for punching the two ends of the pipe. The punching device 10 comprises a punching sliding table 101 slidingly arranged on the upper end of the workbench plate 1 along the Z-axis direction, a punching driving part 102 arranged on the upper end of the workbench plate 1 and used for driving the punching sliding table 101, a positioning unit 103 arranged on the upper end of the punching sliding table 101, and a punching unit 104 arranged on the upper end of the punching sliding table 101. The positioning unit 103 comprises a positioning mounting seat 1031 and a positioning core rod 1032 arranged on the side wall of the positioning mounting seat 1031 along the Z-axis direction. The punching unit 104 comprises a punching mounting bracket 1041 arranged above the positioning mounting seat 1031, a punching oil cylinder 1042 arranged on the upper end of the punching mounting bracket 1041, and a punching core rod 1043 arranged on the output end of the punching oil cylinder 1042. The punching oil cylinder 1042 is located directly above the positioning core rod 1032, and the output end of the punching oil cylinder 1042 is arranged vertically downward.

[0040] An avoiding through hole is arranged at the position opposite to the upper end of the positioning core rod 1032, and is used for inserting the lower end of the punching core rod 1043.

[0041] The blanking station 5 is provided with a blanking device 11, which is used for conveying the pipe outward. The blanking device 11 comprises a mounting column 111 and a blanking guide plate 112 arranged on the side wall of the mounting column 111. The blanking guide plate 112 is inclined to the outside of the workbench plate 1.

[0042] The upper end of the workbench plate 1 is provided with a transfer manipulator 12, which is used for transferring the pipe between the feeding station 2, the necking station 3, the punching station 4 and the blanking station 5. In the embodiment, the transfer manipulator 12 has three clamping ends. Thus, when the transfer manipulator 12 moves the pipe to be processed from the feeding device 6 to the necking clamping device 7, the transfer manipulator 12 can move the pipe after necking from the necking clamping device 7 to the punching clamping device 9, and the transfer manipulator 12 can also move the pipe after punching from the punching clamping device 9 to the blanking device 11.

[0043] Of course, the above is only a typical example of the present application, and in addition to this, the present application can have other various specific implementation manners. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of the present application.

Claims

1. A punching machine for reducing the opening, characterized in that: The system includes a workbench (1). Along the X-axis, the upper end of the workbench (1) is sequentially equipped with a loading station (2), a narrowing station (3), a punching station (4), and a unloading station (5). The loading station (2) is equipped with a loading device (6) for supplying pipe fittings one by one. Along the Z-axis, the narrowing station (3) is sequentially equipped with a narrowing clamping device (7) and a narrowing device (8). The narrowing clamping device (7) is used to clamp the pipe fittings, and the narrowing device (8) is used to narrow the ends of the pipe fittings. A punching clamping device (9) is located at the center of the punching station (4). The punching clamping device (9) is used to clamp the pipe fitting. The punching station (4) is equipped with two punching devices (10). The two punching devices (10) are respectively located on both sides of the punching clamping device (9) to punch the two ends of the pipe fitting. The unloading station (5) is equipped with an unloading device (11). The unloading device (11) is used to transport the pipe fitting away from the outside. A transfer robot (12) is provided above the workbench (1). The transfer robot (12) is used to drive the pipe fitting to move between the loading station (2), the necking station (3), the punching station (4), and the unloading station (5).

2. A punching machine for reducing the opening according to claim 1, characterized in that: The feeding device (6) includes a hopper (61), a top feeding mechanism (62), and a feeding guide mechanism (63) arranged sequentially along the X-axis. A pipe fitting slide (13) is provided at the upper end of the hopper (61), extending obliquely towards the constriction station (3). A top feeding through hole (14) is provided at the lower end of the hopper (61). The top feeding mechanism (62) includes a top feeding plate (621) slidably disposed vertically inside the top feeding through hole (14), and a top feeding plate (621) disposed below the hopper (61) and connected to the top feeding plate (621). The top material drive component (622) of the top material plate (621) is provided with a guide slope (15) at the upper end. A top material chamber (16) for inserting a single pipe is formed between the guide slope (15) and the inner side wall of the hopper (61). The feeding guide mechanism (63) includes a guide mounting bracket (631) and a guide block (632) provided on the guide mounting bracket (631). A guide opening (17) is provided at the upper end of the guide block (632). The guide opening (17) is used to receive the pipe that slides down from the pipe slide plate (13).

3. A punching machine for reducing the opening according to claim 2, characterized in that: The feeding device (6) further includes a baffle mechanism (64), which is located above the pipe fitting slide (13). The baffle mechanism (64) includes a baffle cylinder (641) and a baffle plate (642) disposed below the baffle cylinder (641). The output end of the baffle cylinder (641) is connected to the baffle plate (642).

4. A punching machine for reducing the opening according to claim 1, characterized in that: The necking clamping device (7) includes a necking clamp pad (71) disposed on the upper end of the worktable (1), a necking clamp base (72) disposed on the upper end of the necking clamp pad (71), a necking fixed chuck (73) disposed on the upper end of the necking clamp base (72), a necking movable chuck (74) slidably disposed on the upper end of the necking clamp base (72) along the X-axis direction, a necking clamp seat plate (75) disposed on the upper end of the necking clamp pad (71), and a necking clamping cylinder (76) disposed on the side wall of the necking clamp seat plate (75). The output end of the necking clamping cylinder (76) passes through the necking clamp seat plate (75) and is connected to the necking movable chuck (74).

5. A punching machine for reducing the opening according to claim 1, characterized in that: The necking device (8) includes a necking slide (81) that is slidably disposed on the upper end of the worktable (1) along the Z-axis direction, a necking drive (82) disposed on the upper end of the worktable (1) for driving the necking slide (81), a necking mounting seat (83) disposed on the upper end of the necking slide (81), and a necking mold (84) disposed on the side wall of the necking mounting seat (83).

6. A punching machine for reducing the opening according to claim 5, characterized in that: The necking drive component (82) includes a necking servo motor (821), a necking lead screw (822) coaxially connected to the necking servo motor (821), and a necking nut seat (823) threaded on the outside of the necking lead screw (822). The necking nut seat (823) is fixedly connected to the necking slide (81).

7. A punching machine for reducing the diameter of holes according to claim 1, characterized in that: The punching clamping device (9) includes two clamping units (91), and the two clamping units (91) are arranged side by side along the Z-axis.

8. A punching machine for reducing the diameter of holes according to claim 7, characterized in that: The clamping unit (91) includes a punching fixture pad (911) disposed on the upper end of the worktable (1), a punching fixture base (912) disposed on the upper end of the punching fixture pad (911), a punching fixed chuck (913) disposed on the upper end of the punching fixture base (912), a punching movable chuck (914) slidably disposed on the upper end of the punching fixture base (912) along the X-axis direction, a punching fixture seat plate (915) disposed on the upper end of the punching fixture pad (911), and a punching clamping cylinder (916) disposed on the side wall of the punching fixture seat plate (915). The output end of the punching clamping cylinder (916) passes through the punching fixture seat plate (915) and is connected to the punching movable chuck (914).

9. A punching machine for reducing the opening according to claim 1, characterized in that: The punching device (10) includes a punching slide (101) slidably disposed on the upper end of the worktable (1) along the Z-axis direction, a punching drive (102) disposed on the upper end of the worktable (1) for driving the punching slide (101), a positioning unit (103) disposed on the upper end of the punching slide (101), and a punching unit (104) disposed on the upper end of the punching slide (101). The positioning unit (103) includes a positioning mounting base (1031) and a punching unit (104) disposed on the positioning mounting base (1031) along the Z-axis direction. 1031) Positioning mandrel (1032) on the side wall. The punching unit (104) includes a punching mounting bracket (1041) mounted above the positioning mounting base (1031), a punching cylinder (1042) set at the upper end of the punching mounting bracket (1041), and a punching mandrel (1043) set at the output end of the punching cylinder (1042). The punching cylinder (1042) is located directly above the positioning mandrel (1032), and the output end of the punching cylinder (1042) is set vertically downward.

10. A punching machine for reducing the opening according to claim 9, characterized in that: The punching drive unit (102) includes a punching servo motor (1021), a punching lead screw (1022) coaxially connected to the punching servo motor (1021), and a punching nut seat (1023) threaded on the outside of the punching lead screw (1022). The punching nut seat (1023) is fixedly connected to the punching slide (101).

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